Title Special Protection System (SPS) Operations Under No Contingency
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Status Approved on 09/03/2009


Date Gov Body Action Taken Next steps
09/03/2009 TAC Approved
08/13/2009 ROS Recommended for Approval TAC Consideration
07/27/2009 OWG Recommended for Approval ROS consideration
06/17/2009 OWG Recommended for Approval OWG Impact Analysis Review
05/27/2009 OWG Deferred/Tabled OWG Consideration
05/20/2009 OWG Deferred/Tabled OWG language consideration

Voting Record

Date Gov Body Motion Result
09/03/2009 TAC To approve OGRR224 as recommended by ROS in the 8/13/09 ROS Recommendation Report Passed
08/13/2009 ROS To recommend approval of OGRR224 as recommended by OWG in the 7/27/09 OWG Recommendation Report. Passed
07/27/2009 OWG Consensus to endorse and forward the OWG Recommendation Report and Impact Analysis for OGRR224 to ROS.
06/17/2009 OWG Consensus to recommend approval of OGRR224 as revised by OWG.
05/27/2009 OWG Consensus to table until the next OWG meeting.
05/20/2009 OWG Consensus to table OGRR224 for one week.


Status: Approved
Date Posted: Apr 22, 2009
Sponsor: ERCOT
Urgent: No
Sections: 7.2.2
Description: This Operating Guide Revision Request (OGRR) adds additional monitoring and control requirements for Special Protection Systems (SPSs) that involve generation reduction.
Reason: ERCOT observed several SPS operations in 2008 that occurred under normal loading without any system disturbances. The revision presented herein places an obligation on Resource owners who have an SPS to monitor the flows monitored by the SPS in the base case and reduce output as needed before the arming point of the SPS is reached.

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